Principal Investigators

Principal Investigators

PVARF uses the term Principal Investigator to designate the individual who has overall authority and responsibility for conducting a research or education project. The principal investigator (PI) for each project/activity must hold a VA appointment and also must be the same person who is named in the approval granted the project by the applicable committee or Education Committee. The PI for each project/activity is responsible for supervising all personnel for their activity.

Upon request and approval from the appropriate PI, the PVARF will pay personnel from the appropriate research or education account fund.

Image for Alan Teo
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Alan Teo, MD, MS


Placeholder Image for Alice Avolio

Alice Avolio, MS, RN

Image for Amir Azarbal
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Amir Azarbal, MD, M.C.R.

Vascular Surgery

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Jennifer L. Barton, MD, MCR


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Naomi Bramhall, PhD


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David Calverley, MD

Image for Kathleen F. Carlson
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Kathleen F. Carlson, MS, PhD

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Michelle Cameron, M.D., P.T., M.C.R.


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Sunwen Chou, MD

Infectious Disease

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Kathryn Chung, MD

Movement Disorders

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Daniel Clayburgh, MD, PhD, F.A.C.S.

Head and Neck Surgery

Placeholder Image for David Cohen
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David Cohen, MD


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J. Stone Doggett, MD

Infectious Diseases

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Samuel Edwards, MD, MPH

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Deniz Erten-Lyons, MD, FAAN

Geriatric Neurology

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Jonathan Elliott, PhD

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Graeme Forrest, MD

Infectious Disease

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Mark Garzotto, MD


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Sara Golden, PhD

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Julie Graff


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Jeanne-Marie Guise, MD, M.P.H.

Obstetrics and Gynecology

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Margo Halm, PhD, RN, ACNS-BC

Placeholder Image for Seunggu Jude Han

Seunggu Jude Han, MD

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Melanie Hariff, PhD


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Michael Heinrich, MD

Medical Oncology

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Mark Helfand, MD, MPH

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Cinda Hugos

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Michael P. Hutchens, MD, MA

Placeholder Image for Aaron Janowsky
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Aaron Janowsky, PhD

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Devan Kansagara, MD, MCR

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Jane Xu Kelly, PhD


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Robert Klein, MD

Endocrinology and Diabetes

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Ryan Kopp, MD


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Rajan Kulkarni

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Charles Layman, MD

Orthopedic Hand Surgery

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David Lewinsohn, MD, PhD

Pulmonary Disease

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Miranda M. Lim, MD, PhD

Sleep Medicine

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Jennifer M. Loftis, PhD

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Travis Lovejoy, PhD, MPH

Image for Shiuh-Wen Luoh
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Shiuh-Wen Luoh, MD, PhD


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Melissa D. Murphy, MD

Infectious Disease

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Ruth Napier, PhD

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Khanh Nguyen, PhD

Vascular Surgery

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Christopher Pfeiffer, MD, MHS

Infectious Disease

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Victor Quijano, DPM, PhD


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Joseph Quinn, MD

Geriatric Neurology

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Michael Riscoe, Ph.D.

Medical Chemistry

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Mitch Sally, MD, F.A.C.S.

General Surgery

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Gabrielle Saunders, PhD

Image for Christopher Slatore
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Christopher Slatore, MD, MS

Pulmonary Disease

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Stephen M. Smith, MB, BS, PhD

Critical Care Medicine

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Ruth Ann Tsukuda, EdD, MPH

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Reid Thompson, MD,PhD

Therapeutic Radiology

Placeholder Image for Belle Zaccari
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Belle Zaccari, PsyD

Placeholder Image for Ignatius Zarraga
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Ignatius Zarraga, MD

Cardiovascular Diseases

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